ACOMS+ 및 학술지 리포지터리 설명회

  • 한국과학기술정보연구원(KISTI) 서울분원 대회의실(별관 3층)
  • 2024년 07월 03일(수) 13:30
 

  • P-ISSN2233-4203
  • E-ISSN2093-8950
  • ESCI, SCOPUS, KCI

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  • P-ISSN 2233-4203
  • E-ISSN 2093-8950

An anomalous dissociation of protonated cluster ions of DNA guanine-cytosine base-pair

Mass Spectrometry Letters / Mass Spectrometry Letters, (P)2233-4203; (E)2093-8950
2011, v.2 no.3, pp.73-75
https://doi.org/10.5478/MSL.2011.2.3.073
Yeonmi Seong (Sogang University)
Sang Yun Han (Korea Research Institute of Standards and Science)
Sung-Chan Jo (Samsung Electronics)
Han Bin Oh (Sogang University)
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Abstract

In the collisionally-activated dissociation of the proton-bound cluster ions of DNA base guanine (G) and cytosine(C), G••H+••C, the abundance of [CH+] ions was found to be higher than that of [GH+] despite the fact that G has a higher protonaffinity than C. This unexpected observation seems to demonstrate another example that the simple kinetic method scheme doesnot work. We suggest that a kinetic factor or detailed dynamics governing the proton transfer and dissociation should be carefullyconsidered in the applications of the kinetic method to the proton affinity measurements.

keywords
Pronton affinity, Collisional dissociation, Proton transfer, Guanine, Cytosine


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Seong, Y.. manuscript in preparation.

투고일Submission Date
2011-08-29
수정일Revised Date
2011-09-01
게재확정일Accepted Date
2011-09-01
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Mass Spectrometry Letters